Home / 192,864.38-289,342.73-80,482.07

Finding the Fourth Proportional to 192,864.38, 289,342.73 and 80,482.07

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Solution

The fourth proportional to 192,864.38, 289,342.73 and 80,482.07 is: 120,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,864.38 : 289,342.73 = 80,482.07 : x
  2. Step 2: Convert to fraction form
    192,864.38/289,342.73 = 80,482.07/x
  3. Step 3: Cross multiply
    192,864.38x = 289,342.73 × 80,482.07
  4. Step 4: Simplify right side
    192,864.38x = 23,286,900,000.73
  5. Step 5: Solve for x
    x = 23,286,900,000.73/192,864.38
  6. Step 6: Final answer
    x = 120,742.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.